fix: update specification.yaml format and add suggested contributor

Author: MarkusNeusinger

plots/network-transport-static/specification.yaml

@@ -1,11 +1,30 @@
+# Specification-level metadata for network-transport-static
+# Auto-synced to PostgreSQL on push to main
+
 spec_id: network-transport-static
 title: Static Transport Network Diagram
+
+# Specification tracking
 created: 2026-01-10T00:00:00Z
 updated: 2026-01-10T00:00:00Z
 issue: 3463
-suggested: null
+suggested: camold
+
+# Classification tags (applies to all library implementations)
 tags:
-  plot_type: [network, graph, directed]
-  domain: [transportation, logistics, infrastructure]
-  features: [labels, directed-edges, multi-edge]
-  data_type: [categorical, temporal]
+  plot_type:
+    - network
+    - graph
+    - directed
+  data_type:
+    - network
+    - relational
+    - temporal
+  domain:
+    - transportation
+    - logistics
+    - infrastructure
+  features:
+    - labels
+    - directed-edges
+    - multi-edge